Level 2
Stephanie had some flour in a container. She used 214 kg of the flour in the morning. She added 3 kg of flour into the same container in the afternoon. There was 318 kg of flour in the container in the end. How much flour did Stephanie have at first? Express your answer in its simplest form.
Level 3
The museum tickets are priced at $10 and $5. The number of $10-dollar tickets available is 289 that of the number of $5-dollar tickets. 2 out of 3 of the $10-dollar tickets and all the $5-dollar tickets were sold. The ticket sales amounted to $8515. How much more would have been collected if all the tickets were sold?
Level 3
Cheryl bought 114 kg of potatoes on Monday. She cooked 25 kg of potatoes each day on Tuesday, Wednesday and Thursday. What is the mass of the potatoes left on Friday?
